Mage

Mage is an Android GUI for age file encryption, built on kage (a Kotlin/JVM implementation of the age protocol). "Mage" is short for Mobile age. Mage is not officially affiliated with or endorsed by the age project.

What it does Encrypt/decrypt files to age recipients (age1...) or passphrases, including armor, multi-recipient, and encrypt-to-self. SSH keys (ssh-ed25519, ssh-rsa) work as recipients and identities alongside native age keys, and can be mixed on one file. Identities are sealed in the Android Keystore (AES-256-GCM, StrongBox where available) behind biometric/device-credential auth. Recipients get a small address book with QR encode/scan for sharing a public key. Batch mode for encrypting/decrypting more than one file at a time into a folder. Encrypted export/import of your identity vault, so it's not stuck on one device. Hooks into the system: share-sheet targets, a .age file-manager association, launcher shortcuts, a Quick Settings tile